94 comments

  • 2 days ago

    I was beating myself up for confusing the sufficient and necessary in the first sentence.

    The word "must" triggers the necessary.

    This example helped me understand:

    To enter the bar, you MUST be 21.

    o If you are inside the bar--> you are 21

    x If you are 21--> you are in the bar

    1
  • Edited Friday, Feb 27

    I got I -> SC because I read it as if it's an immutable trait, then they qualify for the suspect class. Can someone please explain better why it's SC -> I?

    1
  • Edited Sunday, Feb 22

    I see a lot of comments complaining about the complexity and the fact that there is no video. Don't give up! What helped me was identifying the conditional premise (the first sentence sets up the rules of the game, that's how I think through it), then seeing the author state we don't have the necessary condition (plaintiff makes a showing that X characteristic of Y class is an immutable trait), and thus it is not possible for us to have the sufficient condition as well (membership in suspect class).

    I hope this helps, I may have messed up with the language of the premises so take that with a grain of salt. Keep at it guys and don't give up!!

    If you can, study partners or even someone to talk to along this journey helps a ton.

    1
  • Saturday, Feb 14

    Could someone please break it down? I can't seem to understand this example

    1
  • Thursday, Feb 12

    hi, is there a place on the site in which I can practice these?

    3
  • Thursday, Jan 29

    I'm digesting the material but still need some practice.

    5
  • Edited Wednesday, Jan 14

    SC -> I

    h/I

    -----

    h/SC

    2
  • Tuesday, Jan 06

    To qualify as a suspect class for purposes of equal protection analysis, plaintiffs must make a showing that the characteristic defining the class is an immutable trait. Plaintiffs have not cited any authority to support the conclusion that homosexuality is an immutable characteristic. The court therefore declines to find that plaintiffs constitute a suspect class.

    SC --> I

    h/I

    h/SC

    4
  • Friday, Jan 02

    Can you say an additional assumption that the judge makes is that they are assuming plaintiffs have not cited any authority to support the conclusion that another characteristic is an immutable characteristic? Other than homosexuality?

    1
  • Tuesday, Dec 02 2025

    My breakdown (Long winded, mainly for my self but feel free to read if it helps)

    Suspect class is the sufficient condition here, and plaintiffs making a showing is the necessary condition.

    Membership in the suspect class is sufficient to be part of the plaintiffs making a showing class, but it is not necessary as there are other ways that one can make a showing that the characteristic's defining the class is an immutable trait.

    The reverse of this that helps me further understand is that: Membership in plaintiffs making a showing is necessary to be part of the suspect class (sufficient condition), but it is not good enough (sufficient) because there could be more things you need to check in order for you to get into that smaller bubble of the suspect class.

    The second sentence is where we see the contrapositive of "X is not a member of set B". This is shown by the sentence saying "Plaintiffs have not cited any authority to support the conclusion that homosexuality is an immutable characteristic". Basically to be part of B we need to show that characteristic's defining the class are immutable, and then the second sentence say "well, you actually haven't shown any characteristic defining the class (homosexuality I think) as an immutable.

    This is finally ties back into the final sentence in the form of "If not B (Superset) than not a member of A (Subset). How is this shown? The court basically said "oh you don't have membership in set B (the superset), so we cant give you membership into set A (The subset)

    Membership in set B being characteristics to define the class as immutable, and membership in set A being to qualify as a suspect class

    4
  • Friday, Nov 21 2025

    yeah im cooked for sure

    25
  • Saturday, Sep 13 2025

    Ok I am so confused.

    For some reason I did..

    SC -> I

    /h -> I

    /I -> SC

    how do you know not to do the arrows and to make it in exponent form?

    0
  • Thursday, Aug 21 2025

    Am I dissecting this correctly? :

    Necessary Condition: I

    Sufficient Condition: SC

    So the Lawgic would be:

    SC->I

    hSC

    -----

    hI.

    However, since the plaintiff didn't satisfy the necessary condition of 'I', the contrapositive would be...

    /I-> /SC

    h/I

    ----

    h/SC.

    I guess I'm getting hung up on the notation of the

    SC-> I

    h/I

    ----

    h/SC.

    Are you combining the two notations into one?

    0
  • Sunday, Aug 10 2025

    I didn’t like this example it was extremely confusing…

    44
  • Wednesday, Aug 06 2025

    In order to be a rock climber, one must be an athlete. One is not an athlete, therefore one is not a rock climber.

    3
  • Monday, Jul 28 2025

    QS --> SIT

    They did not SIT.

    /SIT --> /QS.

    P/SIT.

    Conclusion: /QS.

    0
  • Wednesday, Jul 23 2025

    To get into Harvard, you must submit an application.

    This doesn't mean if you submit an application, you'll get into Harvard.

    Harvard Student -> Submitted Application

    5
  • Monday, Jun 30 2025

    I'm not understanding how they mapped it out SC->I because I started with I -> SC? Can someone explain how this was done. I saw another comment about it but still did not understand.

    1
  • Saturday, Jun 21 2025

    What I did was:

    I -> S;

    !H^I

    -----

    !H^S

    Where I = immutable trait; S = suspect class; H = homosexuality.

    Can someone explain how I can get to the right answer?

    0
  • Tuesday, Jun 03 2025

    I use the Speechify browser plug-in to read these lessons that don't have videos to me using Mr. Beast's voice. It's a trip.

    9
  • Friday, May 16 2025

    Im a bit confused. shouldn't "I" represent immutable trait?

    2
  • Friday, May 02 2025

    i love that he asked a bonus question - whether there was any assumption. as soon as i read that, i went back to the stimulus and found the assumption. nice!

    1
  • Wednesday, Apr 09 2025

    I got it right! Drawing it out exactly as you have been demonstrating helped—consistency in form is key!

    0
  • Thursday, Apr 03 2025

    Does it matter if our member is the same? When I tried my go at this question this is how I did it

    SC(suspect class) -> IT(immutable trait)

    p(plaintiff)^IT

    ---------

    p^/SC

    1
  • Thursday, Mar 06 2025

    Not sure if this is accurate but this was my setup. QSC (Qualify as suspect Class) CIT (classify as immutable trait). H (Homosexuality)

    H /CIT

    --------

    H /QSC

    So, since Homosexuality is not classified as an immutable trait, Homosexuality does not qualify as suspect class.

    0

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